Use the rectangles with the given dimensions to approximate the area of the region in the first quadrant bounded by the graphs of y = 4 – x2 , y = 0, and x = 0.
4 _
3|_|-.
2|_|-|-.
1|_|-|_|_
|_|_|_|_|
1 2
4 _
3|_|-.
2|_|-|-.
1|_|-|_|_
|_|_|_|_|
1 2